Sun Valley, AZ Weather & Growing Conditions
Today
83°F
Sunny
Sunny. High near 83, with temperatures falling to around 81 in the afternoon. Southwest wind 3 to 13 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 3 to 13 mph SW | 3% |
| Tonight | 54°F | Mostly Clear | 6 mph SW | 2% |
| Sunday | 81°F | Sunny | 5 mph SW | 0% |
| Sunday Night | 56°F | Mostly Cloudy | 5 mph S | 0% |
| Monday | 82°F | Mostly Sunny | 7 mph S | 1% |
| Monday Night | 56°F | Partly Cloudy | 3 to 7 mph S | 13% |
| Tuesday | 81°F | Chance Showers And Thunderstorms | 6 to 13 mph SE | 44% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms | 6 to 9 mph SE | 35% |
| Wednesday | 79°F | Slight Chance Showers And Thunderstorms | 6 mph E | 15% |
| Wednesday Night | 57°F | Chance Showers And Thunderstorms | 7 mph E | 27% |
| Thursday | 77°F | Chance Showers And Thunderstorms | 6 mph E | 40% |
| Thursday Night | 57°F | Chance Showers And Thunderstorms | 6 mph SE | 40% |
| Friday | 77°F | Chance Showers And Thunderstorms | 6 mph SE | 37% |
| Friday Night | 56°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SE | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sun Valley, AZ
Last spring frost
Apr 22
First fall frost
Oct 24
Growing season
184 days
Hardiness zone
7a
Explore more for Sun Valley, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Holbrook, Az (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.